Tool for removing drillings from bores



H. BUTTRAM. TOOL FOR REMOVING DRILLINGS FROM B'ORES. APPLICATION FIL'ED JULY 8,1920.

1,377,665. Patepted May 10,1921.

I I M s A 1 b I M I y h HENRY BUTTRAM, OF MORAN, IOWA.

Specification of Letters Patent.

Patented May 18*, llifii.

Application filed July 8, 1920. Serial llo. 394397.

' To all 107mm 2'25 may concern:

it known that I, HENRY BUTTRABI, a

citizen otthe 'United States, residing at of this character whereb the bore ma be cleaned.

Another object is to provide a device of this character including a sectional handle, said sections being constructed in various or graduating sizes so that the handle may be made as long or short as desired.

Another object is to provide a device of this characterincluding a sectional handle adapted to receive a novel form oi scoop and drill to remove packed or damped drillings.

A still further object of the invention is to provide a device of this character including a scoop for removing drillings from a bore, the ends of said scoop being provided with bits for loosening the drillings, said scoop being rotatable with the bits whereby the side edges of the scoop assist in the cleaning operation, the drillings being removed from the bore upon sliding movement of the scoop.

lVith the above and other objects in view, the invention consists in the improved construction and arrangement of parts to be hereinafter more particularly described, fully claimed and illustrated in the accompanying drawings, in which Figure 1 is a top plan view of a tool constructed in accordance with an embodiment of: the invention,

Fig. 2 is a side elevation,

3 is an end view.

Referring to the drawings, 5 designates a handle composed of a plurality of sections (3 of graduating lengths, the sections being connected to each other by means of the couplings 7. In this way, the handle may be made as long or as short as desired. In order to remove drillings from a bore, especially in a mine in order to clean the bore for the reception fot powder, I provide a novel tool consisting of an elongated semicylindrical scoop 8 having a stem 9 on one end, said stem being threaded for connection to the handle 5 by means or one of the couplings 7. The end 10 of the scoop has its lower portion cut away as at 11 to provide extensions or bits 12. The ends of the bits are tapered, each bit being extended toward the intermediate portion of the scoop and away from each oth r thereby disposing the bits in circular formation and at the same time permitting unobstructed passage oi the drillings into the scoop between said bits. This scoop and bits are intended to remove drillings that have adhered to each other by means or dampness or foreign matter in the bore in which case, the drillings are paclred tight within the bore. The bits 12 readily loosen the drillings upon rotation of the handle and the scoop. The drillings are deposited in the scoop and may be readily removed from the bore upon retraction of the handle and the scoop.

The scoop is used to readily remove all forms oi drillings but is particularly adapted for use in removing packed or damp drillings. This is possible in view of the novel formation oil the bits 1.2. Regardless of the condition 01" the drillings, they may be readily removed as the bits 12 do not obstruct the entrance of matter to the scoop.

From the foregoing it will be readily seen that this invention provides a novel tool for removing drillings from bores and particularly drillings from bores in mines previous to depositing a powder charge in the bore. This device clearly facilitates the work by removing the drillings regardless of their condition with rapidity, without r quiring unnecessary strain or labor on the part of the user. I

What is claimed is:

1. A scoop of the character describes, comprising a body member, one end of said scoop including bits, said bits being disposed adjacent the cornersoi said end, and

having their end portions curved inwardly toward each other in offset relation whereby matter in a passage may be loosened upon rotation of the scoop and deposited into and removed by the scoop upon sliding movement thereof.

2. A scoop of the character described comprising a body member having a pair of diametrically disposed bits, said bits projecting from said end and forming a continuation of the side edges of the scoop, the ends of said bits extending inwardly of the scoop and away from each other.

3. As an article of manufacture, a tool of the character described comprising a scoop partially closed at one end, the opposite end thereof having a pair of opposed extensions, said extensions being disposed adjacent the upper edge of the scoop and projecting beyond and in spaced relation to the bottom of the scoop, the extremities of said extensions extending in opposite directions.

4. As an article of manufacture, a tool of the character described comprising a scoop having a pair of opposed bits projecting from one of the end portions of the sides of the scoop in spaced relation to the bottom of the scoop, one of said bits being extended inwardly and upwardly, the remaining bit being extended inwardly and downwardly beneath and in spaced relation to the first mentioned bit, the extremity of each bit projecting beyond the adjacent bit.

In testimony whereof I hereunto afiiX my signature.

HENRY BUTTRAM. 

